    label {
      display: inline-block;
      width: 3em;
      margin: .5em 0;
      color: #607D8B;
      font-weight: bold;
    }
    input {
      height: 2em;
      font-size: 1em;
      padding-left: .4em;
    }
    button {
      margin-top: 20px;
      font-family: Arial;
      background-color: #eee;
      border: none;
      padding: 5px 10px;
      border-radius: 4px;
      cursor: pointer; cursor: hand;
    }
    button:hover {
      background-color: #cfd8dc;
    }
    button:disabled {
      background-color: #eee;
      color: #ccc;
      cursor: auto;
    }